Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response
International audience The North Atlantic spring bloom is one of the largest annual biological events in the ocean, and is characterized by dominance transitions from siliceous (diatoms) to calcareous (coccolithophores) algal groups. To study the effects of future global change on these phytoplankto...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2009
|
Subjects: | |
Online Access: | https://hal.science/hal-00700400 https://hal.science/hal-00700400/document https://hal.science/hal-00700400/file/m388p013.pdf https://doi.org/10.3354/meps08133 |
id |
ftinsu:oai:HAL:hal-00700400v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Feng, Y. Hare, C.E. Leblanc, Karine Rose, J.M. Zhang, Y. Ditullio, G.R. Lee, P.A. Wilhelm, S.W. Rowe, J.M. Sun, J. Nemcek, N. Gueguen, C. Passow, Uta Benner, I. Brown, C. Hutchins, D. A. Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience The North Atlantic spring bloom is one of the largest annual biological events in the ocean, and is characterized by dominance transitions from siliceous (diatoms) to calcareous (coccolithophores) algal groups. To study the effects of future global change on these phytoplankton and the biogeochemical cycles they mediate, a shipboard continuous culture experiment (Ecostat) was conducted in June 2005 during this transition period. Four treatments were examined: (1) 12°C and 390 ppm CO2 (ambient control), (2) 12°C and 690 ppm CO2 (high pCO2), (3) 16°C and 390 ppm CO2 (high temperature), and (4) 16°C and 690 ppm CO2 ('greenhouse'). Nutrient availability in all treatments was designed to reproduce the low silicate conditions typical of this late stage of the bloom. Both elevated pCO2 and temperature resulted in changes in phytoplankton community structure. Increased temperature promoted whole community photosynthesis and particulate organic carbon (POC) production rates per unit chlorophyll a. Despite much higher coccolithophore abundance in the greenhouse treatment, particulate inorganic carbon production (calcification) was significantly decreased by the combination of increased pCO2 and temperature. Our experiments suggest that future trends during the bloom could include greatly reduced export of calcium carbonate relative to POC, thus providing a potential negative feedback to atmospheric CO2 concentration. Other trends with potential climate feedback effects include decreased community biogenic silica to POC ratios at higher temperature. These shipboard experiments suggest the need to examine whether future pCO2 and temperature increases on longer decadal timescales will similarly alter the biological and biogeochemical dynamics of the North Atlantic spring bloom. |
author2 |
College of Marine Studies (CMS) University of Delaware Newark Department of Biological Sciences Los Angeles University of Southern California (USC) Laboratoire d'océanographie et de biogéochimie (LOB) Université de la Méditerranée - Aix-Marseille 2-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Woods Hole Oceanographic Institution (WHOI) Hollings Marine Laboratory College of Charleston Department of microbiology The University of Tennessee Knoxville CAS Key Laboratory of Marine Ecology and Environmental Science (KLMEES) CAS Institute of Oceanology (IOCAS) Chinese Academy of Sciences Beijing (CAS)-Chinese Academy of Sciences Beijing (CAS) Department of Earth and Ocean Sciences Vancouver (EOS) University of British Columbia (UBC) Department of Chemistry Trent University Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Earth Science System Interdisciplinary Center College Park (ESSIC) College of Computer, Mathematical, and Natural Sciences College Park University of Maryland College Park University of Maryland System-University of Maryland System-University of Maryland College Park University of Maryland System-University of Maryland System College of Marine Studies |
format |
Article in Journal/Newspaper |
author |
Feng, Y. Hare, C.E. Leblanc, Karine Rose, J.M. Zhang, Y. Ditullio, G.R. Lee, P.A. Wilhelm, S.W. Rowe, J.M. Sun, J. Nemcek, N. Gueguen, C. Passow, Uta Benner, I. Brown, C. Hutchins, D. A. |
author_facet |
Feng, Y. Hare, C.E. Leblanc, Karine Rose, J.M. Zhang, Y. Ditullio, G.R. Lee, P.A. Wilhelm, S.W. Rowe, J.M. Sun, J. Nemcek, N. Gueguen, C. Passow, Uta Benner, I. Brown, C. Hutchins, D. A. |
author_sort |
Feng, Y. |
title |
Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response |
title_short |
Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response |
title_full |
Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response |
title_fullStr |
Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response |
title_full_unstemmed |
Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response |
title_sort |
effects of increased pco2 and temperature on the north atlantic spring bloom. i. the phytoplankton community and biogeochemical response |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00700400 https://hal.science/hal-00700400/document https://hal.science/hal-00700400/file/m388p013.pdf https://doi.org/10.3354/meps08133 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00700400 Marine Ecology Progress Series, 2009, 388, pp.13-25. ⟨10.3354/meps08133⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps08133 hal-00700400 https://hal.science/hal-00700400 https://hal.science/hal-00700400/document https://hal.science/hal-00700400/file/m388p013.pdf doi:10.3354/meps08133 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps08133 |
container_title |
Marine Ecology Progress Series |
container_volume |
388 |
container_start_page |
13 |
op_container_end_page |
25 |
_version_ |
1790603761923653632 |
spelling |
ftinsu:oai:HAL:hal-00700400v1 2024-02-11T10:06:12+01:00 Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response Feng, Y. Hare, C.E. Leblanc, Karine Rose, J.M. Zhang, Y. Ditullio, G.R. Lee, P.A. Wilhelm, S.W. Rowe, J.M. Sun, J. Nemcek, N. Gueguen, C. Passow, Uta Benner, I. Brown, C. Hutchins, D. A. College of Marine Studies (CMS) University of Delaware Newark Department of Biological Sciences Los Angeles University of Southern California (USC) Laboratoire d'océanographie et de biogéochimie (LOB) Université de la Méditerranée - Aix-Marseille 2-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Woods Hole Oceanographic Institution (WHOI) Hollings Marine Laboratory College of Charleston Department of microbiology The University of Tennessee Knoxville CAS Key Laboratory of Marine Ecology and Environmental Science (KLMEES) CAS Institute of Oceanology (IOCAS) Chinese Academy of Sciences Beijing (CAS)-Chinese Academy of Sciences Beijing (CAS) Department of Earth and Ocean Sciences Vancouver (EOS) University of British Columbia (UBC) Department of Chemistry Trent University Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Earth Science System Interdisciplinary Center College Park (ESSIC) College of Computer, Mathematical, and Natural Sciences College Park University of Maryland College Park University of Maryland System-University of Maryland System-University of Maryland College Park University of Maryland System-University of Maryland System College of Marine Studies 2009-05-19 https://hal.science/hal-00700400 https://hal.science/hal-00700400/document https://hal.science/hal-00700400/file/m388p013.pdf https://doi.org/10.3354/meps08133 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps08133 hal-00700400 https://hal.science/hal-00700400 https://hal.science/hal-00700400/document https://hal.science/hal-00700400/file/m388p013.pdf doi:10.3354/meps08133 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00700400 Marine Ecology Progress Series, 2009, 388, pp.13-25. ⟨10.3354/meps08133⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2009 ftinsu https://doi.org/10.3354/meps08133 2024-01-17T17:26:11Z International audience The North Atlantic spring bloom is one of the largest annual biological events in the ocean, and is characterized by dominance transitions from siliceous (diatoms) to calcareous (coccolithophores) algal groups. To study the effects of future global change on these phytoplankton and the biogeochemical cycles they mediate, a shipboard continuous culture experiment (Ecostat) was conducted in June 2005 during this transition period. Four treatments were examined: (1) 12°C and 390 ppm CO2 (ambient control), (2) 12°C and 690 ppm CO2 (high pCO2), (3) 16°C and 390 ppm CO2 (high temperature), and (4) 16°C and 690 ppm CO2 ('greenhouse'). Nutrient availability in all treatments was designed to reproduce the low silicate conditions typical of this late stage of the bloom. Both elevated pCO2 and temperature resulted in changes in phytoplankton community structure. Increased temperature promoted whole community photosynthesis and particulate organic carbon (POC) production rates per unit chlorophyll a. Despite much higher coccolithophore abundance in the greenhouse treatment, particulate inorganic carbon production (calcification) was significantly decreased by the combination of increased pCO2 and temperature. Our experiments suggest that future trends during the bloom could include greatly reduced export of calcium carbonate relative to POC, thus providing a potential negative feedback to atmospheric CO2 concentration. Other trends with potential climate feedback effects include decreased community biogenic silica to POC ratios at higher temperature. These shipboard experiments suggest the need to examine whether future pCO2 and temperature increases on longer decadal timescales will similarly alter the biological and biogeochemical dynamics of the North Atlantic spring bloom. Article in Journal/Newspaper North Atlantic Institut national des sciences de l'Univers: HAL-INSU Marine Ecology Progress Series 388 13 25 |